A gas measuring method performs a gas measurement inside a sealed container provided with a pair of plates and an exhaust pipe having a breakable vacuum isolating member on at least one of the plates. The invention includes attaching a transaction device to an article using apparatuses comprised of bands, clips, clamps, drawstrings, and adhesives. An identification of a change to one of the plurality of policies is received, and the deployment agent is also invoked to apply the changed policy to selected ones of the components associated with the parts of the model. When the photoconductor has a noncentrosymmetric zincblende crystal structure a single coherent light beam can be used to obtain pure spin currents and mixed electrical and spin, currents may be produced when the photoconductor has a wurtzite structure. Linear sliding of the reel while also winding and unwinding the lift line is caused by rotation of external threads in matching-thread contact with internal threads in a threaded housing. The compounds of formula I are orexin receptor antagonists and the related compounds can be useful in the treatment of sleep apnea, narcolepsy, insomnia, parasomnia, jet lag syndrome, circadian rhythms disorder or sleep disorders associated with neurological diseases.